Underwater operations 26 thru 29 dec by M/V hesfibel marine in area bound by 40-33.45N 026-58.95E, 40-32.38N…
Sea of Marmara · HYDROLANT 2303/06
What this record establishes
Archived notice · 2006-12-30 00:01Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA III 614/06.. Issued 2006-12-25 19:49Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Sea of Marmara. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Current notices and reporting history in the Sea of Marmara →
- issued
- 2006-12-25 19:49Z
- status
- Archived notice
- authority
- NAVAREA III 614/06.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Sea of Marmara
- position
- 40.542, 26.965
- vessel
- M/V HESFIBEL MARINE · 3 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS 26 THRU 29 DEC BY M/V HESFIBEL MARINE IN AREA BOUND BY 40-33.45N 026-58.95E, 40-32.38N 026-59.35E, 40-31.48N 026-56.90E, 40-32.80N 026-56.50E. 2. CANCEL THIS MSG 30 DEC.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
129 within 180 nm since 1999 · 1 in the last 12 months · 1 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Drilling operations by fatih platform (imo 95037702026-09-03
- Survey operations in progress until 14 jun by M/V tcg cesme in areas bound by a. 38-55.93N 025-24.97E,…2022-05-28
- Survey operations in progress until 172059Z may by M/V oceanic vega, M/V mainport pine and M/V aquarius-g in…2021-04-08
- Survey operations 23 mar thru 15 apr by M/V tubitak marmara and M/V tubitak mam in area bound by 40-03.20N…2021-03-22
- Survey operations 18 feb thru 02 mar by M/V tcg cesme in area bound by 40-00.94N 024-52.91E, 39-40.83N…2021-02-16
- Underwater operations in progress until 19 nov by M/V aegaeo a. 15 nov in 39-53.48N 025-15.05E2020-11-15
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 03:16Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.